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一、陶瓷粘土的分布 (一)成矿时代:如表1 矿床(点)分布见(图1)。 (二)含矿层位: 1.石炭纪成矿期 (1) 渭北地区(华北地台)即韩城市—铜川市—泾阳一带:基底岩石为奥陶系中统马家沟组石灰岩地层。石炭系地层总厚二十米左右,由铁质粘土岩、粘土岩、粉砂质粘土岩、煤层、石英砂岩组成,粘土矿贮存于中、下部位,是陕西粘土矿的重要产地之一。另外,在煤层内夹有薄层状、透镜状煤坩(高岭石)。
First, the distribution of ceramic clay (a) metallogenic epoch: Table 1 deposit (point) distribution see (Figure 1). (2) ore-bearing layers: 1. Carboniferous metallogenic stage (1) Weibei area (North China platform) that is, Hancheng-Tongchuan-Jingyang area: The basement rocks are Ordovician Majiagou limestone strata. Carboniferous strata total thickness of about twenty meters, made of iron clay rock, clay rock, silty clay, coal, quartz sandstone, clay ore stored in the lower part of the clay production in Shaanxi is one of the important sites. In addition, a thin layered, lenticular coal crucible (kaolinite) is sandwiched in the coal seam.